4S Battery Protection Board with Auto Activation - ABLIC S-8254A

10 months ago

Profile:ABLIC 4S 18650 Li-Ion Battery Protection System with Auto Activation

Open source license: GPL 3.0

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Description

A 4S Battery Protecion System using the ABLIC S-8254 IC, this version auto activates the circuit using a relay when batteries are connected, this means power is output via P+ without having to apply a charge voltage. The quiescent current draw is about 160uA.

The discharge cutoff voltage is 3.0V and the charge cutoff voltage is 4.2V.

YouTube video of board: https://youtu.be/SwKMUWJow2g

Blog: https://ratti3.blogspot.com/2020/11/designing-and-making-4s-battery.html

Documents

Auto Activation

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4S 18650 Li-Ion S-8254 Battery Protection System

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4S 18650 Li-Ion S-8254 Battery Protection System

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BOM

ID Name Designator Footprint Quantity BOM_Manufacturer Part BOM_Manufacturer BOM_Supplier BOM_Supplier Part
1 1M RCOP R0805 1 RC0805FR-071ML YAGEO LCSC C107700
2 22uF C1 CAP-SMD_BD5.0-L5.3-W5.3-FD 1 EEE1EA220WR PANASONIC LCSC C336194
3 ZMM22 ZD1 LL-34_L3.5-W1.5-RD 1 ZMM22 SEMTECH LCSC C8073
4 2.2uF CVSS C0805 1 CGA4J1X7R1V225KT0Y0E TDK LCSC C342739
5 10K R10 R0805 1 RC0805FR-0722KL YAGEO LCSC C114565
6 22K R12 R0805 1 RC0805FR-0722KL YAGEO LCSC C114565
7 39K R13 R0805 1 AC0805FR-0739KL YAGEO LCSC C228786
8 17-21/S2C-FR1S2L/3T POWER LED0805-R-RD 1 17-21/S2C-FR1S2L/3T Everlight Elec LCSC C264419
9 17-21/R6C-AQ2R2B/3T RST LED0805-RD 1 17-21/R6C-AQ2R2B/3T EVERLIGHT LCSC C113551
10 S-8254AAWFT-TB-G U1 TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL 1 S-8254AAWFT-TB-G ABLIC Mouser 628-S-8254AAWFT-TB-G
11 10uF C2 CAP-SMD_BD4.0-L4.3-W4.3-FD 1 EEEHA1E100WR PANASONIC LCSC C336260
12 1K RVC4,RVC3,RVC1,RVC2 R0805 4 RC1206FR-071KL YAGEO LCSC C131398
13 AOD403 Q1,Q2 TO-252-3_L6.5-W5.8-P4.58-TL 2 AOD403 AOS LCSC C28969
14 1N4002W D3,D4 SOD-123F_L2.8-W1.8-LS3.7-RD 2 1N4002W Jingdao LCSC C169542
15 G6K-2P-Y-12V RLY_RST RELAY-TH_6S-2-4.5VG6K-2P-Y-12V 1 G6K-2P-Y-12V OMRON LCSC C132367
16 100nF CCDT,CVC3,CVC2,CVC1,CCCT,CVC4 C0805 6 CGA4J2X7R1H104KT0Y0N TDK LCSC C415304
17 BC846ALT1G Q4,Q5,Q3,Q6 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 4 BC846ALT1G ON LCSC C163723
18 0.0005 RSENSE R2512 1 MA251220F0m50SZ Ever Ohms Tech LCSC C429364
19 XH-2AW CN-,CN+ CONN-TH_2P-P2.50_XH-2AW 2 XH-2AW BOOMELE LCSC C33132
20 51 RVSS R0805 1 AC0805FR-0751RL YAGEO LCSC C144556
21 PH-3A RHOS LMH CONN-TH_12P-P2.00-H-W4.8_PH-3A 1 PH-3A RHOS BOOMELE LCSC C2320
22 100K R9 R0805 1 RC0805FR-071KL YAGEO LCSC C95781
23 1K RCTL,RSEL,RVINI R0805 3 RC0805FR-071KL YAGEO LCSC C95781
24 MMBTA92LT1G Q7 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 1 MMBTA92LT1G ON LCSC C82049
25 10K R3,R7 R0805 2 RC0805FR-0710KL YAGEO LCSC C84376
26 1N4148W-7-F D1,D2 SOD-123_L2.8-W1.8-LS3.7-RD 2 1N4148W-7-F DIODES LCSC C83528
27 100K R4,R5,R2,R6,R8 R0805 5 RC0805FR-07100KL YAGEO LCSC C96346
28 270R R11 R0805 1 RC0805FR-07100KL YAGEO LCSC C96346
29 MTP125-1102S1 RESET,H2,H1 HDR-TH_2P-P2.54-V 3 MTP125-1102S1 MINTRON LCSC C358684
30 5.1K RVMP,RDOP R0805 2 RC0805FR-075K1L YAGEO LCSC C84375

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